Liquid-treating apparatus



May 5, 1925.v 1,536,063

K. W. BARTLETT LIQUID TREATING APPARATUS Filed may ze', 1924 :NIMA xIIIJ, 1

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IW lgs Mlm We `liatented May 5, 19225.

vKENT vv. sanitari?, or vtiiaaiiuonn, iraniana.

LieUIn-frunaciriue arraaarus.

Appuauon sied May 2s, 1924; serial No. 7155998.

To` all whom z'z may conce/Ma: i

it known that il., KENT W. B2i-nimmt, a citizenv of the ,United States, residing at `Hammond, in the county of Lake' and the State 'of Indiana, have" `invented av 'certain new i and vuseful Improvement in `Liquid- Treating Apparatus, of which the following is a full, clear, concise, and eXa'ct description.`

My invention relates "to `liquid treating apparatus and is of lparticular service in softening Water. A

VThe invention has for its fobject'the provision 'or improved means for `controlling` themechanisin `which is employed 'tor regnlating the iovv or chemical from the chemical `source to the 'Water thatfis to be softened orto the liquid that ifs to be treated. 4

practicing my invention, piping is employed for supplyilig the Water or other liquid that is to be 'treated to a 'settling `or treatment tank, this piping" having a constri'cted outlet discharging into the tank belovv its limiting level'. A portion ot the treated liquid controls the mechanism which governs thel flow of chemical, this controlling liquid vflowing through an orifice Which is 'small in `'comparison With the aforesaid constrioted outlet. Means are further enipioye'd lvv-hich enable 'the pressure or the raw liquid `to produce ieedingpressure uponthe controlling liquid. This means is preferably i-nc'lusiye of an atmospheric or other gaseous `medium interposed between. the en- 'tering-side or said outlet at a place neighboring the same and a place Where the raiv liquid exerts greater pressure. Ain the preferred embodiment ott the invention, a Vreceptacle' is employed having an inlet `communicating with the raiv liquid piping Where the lesser pressure is exertedby the raw liquid, and a second .receptacle `communicating Withv the raiv liquid piping Where the pressure is greater and having lthe aforesaid orifice which is adjustable in position by theliquid in the `first receptacle and communicating with the first receptacle through a" passage that is above said inlet, there .being sealedspa'ce in' both 'receptacles placed in communication by said passage, in which spacethe gaseous mediumis trap- Pd.

yThe invention' will be inore `fully eirplained in connection'ivith the accompanying drawing; in which Fig'. i is a new in section, somewhat diagrammatic, illustrat-v ing the' preferred embodiment of mennen tion, and Fig. 2 is' a cross sectional vieiv 'of pai-'t oi the apparatus y The `treatment or settling tank 1 reeeives through incoming piping 2, having anfenlargement '3 adjacent the piping and "de- 'sirably having a cut ofi valve A4L. The liquid is discharged into the tank throughan ou'tllet 5 `which is constricted with respecty to the bores of the piping 2 and its enlargement 3, the liquid beingfadmitted to the tank near the bottom thereof.` A sourceoi chemical ispillustrated in the form. fori fa chemical tank 6 which holds thefchemieal 'the Water or `other liquid that is'to be treated 7, such as CMG-H), and NaZC-yvhere `Water is being softened. Cheinicai liroin ,thel source ci chemical is supplied v into the "treatment tank 1 through rpiping 8,` "Whose discharge end is located near the incorn ng raw liquid. The chemical is forced through pipe 8 by means ci a pump '9 into which the chemical flows through the jswinging pipe 10, mountedin the chemical tank 6. The position of this swinging pipe is governed by a 'float 11 that is connected with the pipe 10 by means oi a cable 112 'passing over sheaves 13.` The float tank 14, Which contains the iioat 11, receives thejliracltional portionot the liquid which governs the ioyv of chemical into the treatment tank, through piping 15, 16. The latterpiping communicates With a receptacle 1 7. in the embodiment of the invention shown, the piping 16 receives liquid `troni the piping 16 leading `from the soit Water outletpipe 162. The piping 16 also communicates With the pipe portion 3 to be subject to the prefssure or the Water in this pipe port-ion. l-L pump 1'63 pumps treated Water from the tank 1 through the piping 16 at a slightly greater pressure at the pipe 16 than that exerted by the Water in thepipe portion 3, so that the vravv Water Will not pass up- Wardly into the receptacle 17, Wherebydeq receptacles 17 and 2() may be formedmoina single boit divided by' a partitioii 17 to form the receptacles and terminating short of the sealing top 172 to form a passage 17 3 that places the tops of the receptacles in communication. The piping has a 'trap 24 connected therein into which the controlling liquid is first admitted from the receptacle 17 through the restricted orifice 174 and from which the flow of this liquid is continued to the float tank 14. The liquid issues from the trap 2-1 through a port 25 having a valve 26 which is governed by a float 27 riding upon the liquid in the trap.

The orifice 174 is provided in the upper end of a branch pipe 15 of the rotatable section 152 of the piping 15. The pipe section 15 passes through a sealed joint in partition 17 and is closed Within the receptacle 20. float 28 is carried upon an angular extension of the pipe section 152 and rides upon the liquid Within receptacle 20. This float and the orifice 174 are so related that said orifice is maintained xed With respect to and preferably at the level of the liquid in the receptacle 20, there being an air nipple 153 establishing communication between the pipe portion 15 and the air trapped in the receptacles 17 and 2O above the liquids therein. The head of liquid above the orifice 17 4 determines the amount of controlling treated liquid passing to the float tank 14. This head varies With the variation in the difference in pressures of the ran7 liquid, at the pipe 16 and the outlet 5, the pump 163 being controlled to maintain the pressure of the treated liquid supplied to the tank 17 just slightly in excess of the maximum pressure exerted by the raiv liquid at the pipe 16. An air vent valve 29 may be employed to establish communication with the external air in adjusting the apparatus for operation.

Changes may be made without departing from my invention.

Having thus described my invention, I claim:

l. In a liquid treating apparatus, the combination with a tank for receiving liquid to be treated; of piping for supplying liquid to be treated and having a constricted outlet discharging into the tank beloiv its limiting level; a source of chemical in communication with said tank; mechanism, governed by treated liquid passed through an orifice small in comparison to said outlet, for regulating the floiv of chemical from said source to said tank; and means 'for controlling the iiovv of the controlling treated liquid inclusive of a gaseous medium subject to the pressure of the raw liquid at the entering side of said outlet and the greater pressure of the raw liquid at the remoter point in said pipmof.

2. In a liquid treatingapparatus, the combination with a tank for receiving liquid to be treated; piping for supplying liquid to be treated and having a constricted outlet discharging into the tank below its limiting level; a source of chemical in communication with said tank; liquid controlled mechanism for regulating the flow of chemical from said source to said tank; a receptacle having an inlet communicating with said piping at the entering side of said outlet; a second receptacle receiving treated liquid under greater pressure than that impressed upon the liquid entering the first receptacle, said greater pressure being regulated by the liquid in a portion of said piping remote from said outlet, the second receptacle communicating with the first' through a passage that is above said inlet, there being sealed gas holding space in each receptacle placed in communication With the gas holding space in the other by said passage, there also being an orifice adjustable in position and small in comparison to said outlet,y through Which controlling treated liquid is discharged. from the second receptacle; means controlled by the liquid in the first receptacle for maintaining said orifice in substantially fixed position With respect to the liquid level in the first receptacle; and a trap receiving liquid from the second receptacle and discharging the same to the liquid controlled mechanism to control the same.

3. In a liquid treating apparatus. the coinbination With a tank for receiving' liquid to be treated; piping for supplying liquid to be treated and having a constricted outlet discharging into the tank belon7 its limiting level; a source of chemical in communication With said tank; liquid controlled mechanism for regulating the flow of chemical from said source to said tank; a receptacle having an inlet communicating with said piping at the entering side of said ouflet; a second receptacle receiving treated liquid under greater pressure than that impressed upon the liquid entering the first receptacle` said greater pressure being regulated by the liquid in a portion of said piping remote from said outlet, the second receptacle communicating with the first through a passage that is above said inlet, there heilig sealed gas holding space in each receptacle placed in communication with the gas holding space in the other by said passage, there also being an orifice adjustable in position andsmall in comparison to said outlet, through which controlling treated liquid is discharged from the second receptacle; means for maintaining said orifice in substantially fixed position ivith respect to the liquid level in the first receptacle, inclusive of a float riding upon the liquid in the first receptacle in adjusting relation to said orifice; and a trap receiving liquid from the second receptacle and discharging the same to the liquid controlled mechanism to control the same.

1i', sanear,

it; In' liquid treating apparatus, the combination with af tank for receiving liquidi tobe treated; piping for supplying liquid to `be treated and having a constricted. outlet` discharging into the tank below its limiti-ng level; a source of chemical in coinmunicati'on with said tank; liquid controlled mechanism 'for regulating the *fiow ochemical from said source to said tank; a receptacle having an inlet" communicating with said piping at the entering side of said outlet; `a second receptacle receiring treated liquid under greater pressure than that inipressed upon the liquid entering` the first receptacle, said greater pressure being regulated by the liquid in a portion of said pip-- ing remote from said outlet, the second receptacle communicating with the first through a passage that is above said inlet,

there being sealed gas holding space in each` receptacle placed in communication with the gas holdlng space 1n the other by said passage, there also being` an orifice adjustable in position and small in comparison to said outlet, through which controlling treated i liquid is discharged from the second receptacle; means for maintaining' said orifice in substantially fixed position with respect to the liquid level in the first receptacle, inclusive of a float riding upon the liquid in the first receptacle, a pipe mounted to turn and connected with the float to be turned thereby as the fioat rises and falls, said pipe having the aforesaid orifice that-receives the liquid from the second receptacle; and

a trap receiving liquid from the second re ceptacle and discharging the same to the liquid controlled mechanism to control this mechanism and sealed to hold gas above the liquid therein.

5. In a. liquid treating apparatus, the combination with a tank for receiving liquid to be treated; piping for supplying liquid to be treated and having a constricted outlet discharging into the tank below its limiting level; a source of chemical in communication with said tank; liquid controlled mechanism for regulating the fiovv of chemical from said source to said tank; areceptacle having an inlet communicating` with said piping at the entering side of said outlet; a second receptacle receiving` treated liquid under greater pressure than that iinpressed upon the liquid entering the first receptacle, said greater pressure being regulated by the liquid in a portion ol said piping remote from said outlet, the second receptacle communicating with the iirst through a passage that is above said inlet, there being sealed gas holding space in each receptacle placed in communication with the gas holding space in the other by said passage, there also being an oriiice adjustable in positionr and small in comparison to said outlet, through which controlling treated liquid is. discharged from the secondfreceptacle; means controlled by the liquid in the first receptacle for maintaining said orilice in substantially fixed position with re spect to the liquid level in the .first receptacle, said second receptacle being also in communication With said piping and subject to the pressure oit' the liquid inthe piping that is opposite to but less than the pressure impressed by the treated liquid; and a trap receiving liquid from the second receptacle and `discharging the samel to the liquid coptrolled mechanism to control the sama 46. In a liquid treating appa-1ra Y, combination with a tank for re ng liquid to be treated; piping for supi` ying liquid to be treated and having a consti-interi outlet discharging into the tank below its limiting level; a source oi chemical in communication with said tank; liquid controlled mechanism for regulating the flow oil: chemical from said source to said tank; a receptacle having an inlet communicating with said piping at the entering side of said outlet; a second receptacle receiving treated liquid under greater pressure than that impressed upon the liquid entering the first receptacle, said greater pressure being regulated by the liquid in a portion of said piping remote from said outlet, the second receptacle communicating with the first through a passage that is above said inlet, there being sealed gas holding space in each receptacle placed in communication with the gas holding space in the other by said passage, there also being an orifice adjustable in position and small in comparison to said outlet, through Which controlling treated liquid is discharged from the second rereptacle; means for maintaining said oriiice in substantially Xed position with respect to the liquid level in the first receptacle, inclusive of a float riding upon the liquid in the first receptacle in adjusting relation to said orifice; said second receptacle being also in communication with said piping andsubject to the pressure of the liquid in the piping that is opposite to but less than the pressure impressed by the treated liquid; and a trap receiving liquid from the second receptacle and discharging the same to the liquid controlled mechanism to control the same.

7. In a liquid treating appara-tus, the combination with a tank ttor receiving liquid to be treated; piping for supplying liquid to be treated and having a constricled outlet discharging into the tank below its limiting level.; a source of chemical in com-l munica-t-ion with said tank; liquid controlled mechanism for regulating the flow of chemical from said source to said tank; a receptacle having an inlet communicating with said piping at the entering side of said outlet; a second receptacle receiving treated liquid under greater pressure than that impressed upon the liquid entering the first receptacle, said greater pressure being regulated by the liquid in a portion of said piping remote from said outlet, the second receptacle communicating with the first through a passage that is above said inlet, there being sealed gas holding space in each receptacle placed in communication with the gas holding,r space in the other b v said passage, there also being:v an orifice adjustable in position and small in comparison to said outlet. through which controlliiuer treated liquid is discharged from the second receptacle; means for maintaining said orice in substantially fixed position with respect to the liquid level in the first receptacle, inclusive of a 'float riding; upon the liquid in the first receptacle, a pipe mounted to turn and connected With the ioat to be turned thereby as the float rises and falls. said pipe having the aforesaid orifice that receives the liquid from the second recep tacle, said second receptacle beinfr also in communication with said piping and subject to the pressure of the liquid in the piping that is opposite to but less lthan the pressure impressed by the treated liquid: and a trap receiving,r liquid from the second receptacle and discharging' the saine to the liquid controlled mechanism to control the same.

In Witness whereof7 I hereunto subscrib` my naine.

KENT 7. BARTLETT. 

